13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation.
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/981314 https://doi.org/10.5935/0103-5053.20130041 |
Resumo: | In this work, native forest soil (NFS) organic matter (SOM) sample and SOM samples from a neighboring forest soil area of an oil shale mine which is being rehabilitated for thirty years (RFS) were analyzed. X-band electron paramagnetic resonance (EPR) and solid-state 13C nuclear magnetic resonance (NMR) spectroscopies were used to evaluate the soil reclamation of the Brazilian oil shale mining process. Two-dimensional heterospectral correlation studies of the results obtained from EPR and 13C NMR were used to obtain information about SOM structures and their interactions with residual paramagnetic metal ion. The signal of the residual metallic oxycation, VO2+ correlated positively with uronic acid-type hydrophilic organic structures, determined from the 13C NMR spectra, and correlated negatively with the organic free radical (OFR) signal associated with oxygen atoms (g = 2.0042). The hydrophobic aromatic structures correlate positively with the EPR OFR signal associated with carbon atoms (g = 2.0022). The data from the two spectroscopic magnetic techniques show that the used recuperation process is effective. |
id |
EMBR_ee4f3ad56aff71c487108a2f03c39c88 |
---|---|
oai_identifier_str |
oai:www.alice.cnptia.embrapa.br:doc/981314 |
network_acronym_str |
EMBR |
network_name_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository_id_str |
2154 |
spelling |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation.13C NMR spectroscopyStudy of mining soil recuperation2D hetero-spectral correlation spectroscopysoil organic matterIn this work, native forest soil (NFS) organic matter (SOM) sample and SOM samples from a neighboring forest soil area of an oil shale mine which is being rehabilitated for thirty years (RFS) were analyzed. X-band electron paramagnetic resonance (EPR) and solid-state 13C nuclear magnetic resonance (NMR) spectroscopies were used to evaluate the soil reclamation of the Brazilian oil shale mining process. Two-dimensional heterospectral correlation studies of the results obtained from EPR and 13C NMR were used to obtain information about SOM structures and their interactions with residual paramagnetic metal ion. The signal of the residual metallic oxycation, VO2+ correlated positively with uronic acid-type hydrophilic organic structures, determined from the 13C NMR spectra, and correlated negatively with the organic free radical (OFR) signal associated with oxygen atoms (g = 2.0042). The hydrophobic aromatic structures correlate positively with the EPR OFR signal associated with carbon atoms (g = 2.0022). The data from the two spectroscopic magnetic techniques show that the used recuperation process is effective.ETELVINO HENRIQUE NOVOTNY, CNPS.SANTOS, J. V. dosMANGRICH, A. S.PEREIRA, B. F.PILLON, C. N.NOVOTNY, E. H.BONAGAMBA, T. J.ABBT-BRAUNG, G.FRIMMEL, F. H.2020-09-03T04:39:25Z2020-09-03T04:39:25Z2014-02-262013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleJournal of the Brazilian Chemical Society, v. 24, n. 2, p. 320-326, 2013.http://www.alice.cnptia.embrapa.br/alice/handle/doc/981314https://doi.org/10.5935/0103-5053.20130041enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2020-09-03T04:39:32Zoai:www.alice.cnptia.embrapa.br:doc/981314Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542020-09-03T04:39:32falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542020-09-03T04:39:32Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation. |
title |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation. |
spellingShingle |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation. SANTOS, J. V. dos 13C NMR spectroscopy Study of mining soil recuperation 2D hetero-spectral correlation spectroscopy soil organic matter |
title_short |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation. |
title_full |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation. |
title_fullStr |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation. |
title_full_unstemmed |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation. |
title_sort |
13C NMR and EPR spectroscopic evaluation of oil shale mined soil recuperation. |
author |
SANTOS, J. V. dos |
author_facet |
SANTOS, J. V. dos MANGRICH, A. S. PEREIRA, B. F. PILLON, C. N. NOVOTNY, E. H. BONAGAMBA, T. J. ABBT-BRAUNG, G. FRIMMEL, F. H. |
author_role |
author |
author2 |
MANGRICH, A. S. PEREIRA, B. F. PILLON, C. N. NOVOTNY, E. H. BONAGAMBA, T. J. ABBT-BRAUNG, G. FRIMMEL, F. H. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
ETELVINO HENRIQUE NOVOTNY, CNPS. |
dc.contributor.author.fl_str_mv |
SANTOS, J. V. dos MANGRICH, A. S. PEREIRA, B. F. PILLON, C. N. NOVOTNY, E. H. BONAGAMBA, T. J. ABBT-BRAUNG, G. FRIMMEL, F. H. |
dc.subject.por.fl_str_mv |
13C NMR spectroscopy Study of mining soil recuperation 2D hetero-spectral correlation spectroscopy soil organic matter |
topic |
13C NMR spectroscopy Study of mining soil recuperation 2D hetero-spectral correlation spectroscopy soil organic matter |
description |
In this work, native forest soil (NFS) organic matter (SOM) sample and SOM samples from a neighboring forest soil area of an oil shale mine which is being rehabilitated for thirty years (RFS) were analyzed. X-band electron paramagnetic resonance (EPR) and solid-state 13C nuclear magnetic resonance (NMR) spectroscopies were used to evaluate the soil reclamation of the Brazilian oil shale mining process. Two-dimensional heterospectral correlation studies of the results obtained from EPR and 13C NMR were used to obtain information about SOM structures and their interactions with residual paramagnetic metal ion. The signal of the residual metallic oxycation, VO2+ correlated positively with uronic acid-type hydrophilic organic structures, determined from the 13C NMR spectra, and correlated negatively with the organic free radical (OFR) signal associated with oxygen atoms (g = 2.0042). The hydrophobic aromatic structures correlate positively with the EPR OFR signal associated with carbon atoms (g = 2.0022). The data from the two spectroscopic magnetic techniques show that the used recuperation process is effective. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013 2014-02-26 2020-09-03T04:39:25Z 2020-09-03T04:39:25Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Journal of the Brazilian Chemical Society, v. 24, n. 2, p. 320-326, 2013. http://www.alice.cnptia.embrapa.br/alice/handle/doc/981314 https://doi.org/10.5935/0103-5053.20130041 |
identifier_str_mv |
Journal of the Brazilian Chemical Society, v. 24, n. 2, p. 320-326, 2013. |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/981314 https://doi.org/10.5935/0103-5053.20130041 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
_version_ |
1794503495266598912 |